263 High-Strength Threadlocker

LOCTITE® 263 is a red, high-strength, primerless threadlocker for permanently locking and sealing bolts, nuts, and studs to prevent loosening due to vibration. It works on all metals without primer, including passive substrates such as stainless steel, aluminum, and plated surfaces. Suitable for use on most oil-coated, 'as-received' fasteners without cleaning.

• Ideal for heavy-duty applications, such as studs into motor housings, where high strength is required
• Prevents fastener loosening and leakage from shock and vibration
• Permanent locking and sealing of threaded fasteners - removable with heat
• Requires heat for disassembly
• High-temperature performance (up to 182°C / 360°F) and oil tolerance